menthol


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Related to menthol: methyl salicylate, camphor, Menthol cigarettes

menthol,

white crystalline substance with a characteristic pungent odor. It is derived from the oil of the peppermint plant, Mentha piperita (see mintmint,
in botany, common name for members of the Labiatae, a large family of chiefly annual or perennial herbs. Several species are shrubby or climbing forms or, rarely, small trees.
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), or prepared synthetically from coal tar. An alcohol, menthol is freely soluble in ethyl alcohol, ether, and chloroform. It is a local anesthetic and helps relieve itching, and because it imparts a tingling sensation to the skin, it is used in after shave lotions and skin fresheners. It is also used in throat lozenges, inhalers, and as a flavoring.

Menthol

 

3-methyl-6-isopropylcyclohexanol; colorless crystals with a peppermint odor and a slightly bitter taste.

Menthol is readily soluble in organic solvents and slightly soluble in water. It has a strong cooling effect on the skin. There are 12 known stereoisomers, the most widely occurring in nature being the levorotatory ( — )-menthol (melting point, 43°C; boiling point, 216°C). This form is the principal constituent of peppermint oil (to 50 percent) and Japanese mint oil (to 90 percent); the congelation process is used to extract it. Menthol is usually synthesized by the hydrogenation of thymol.

Menthol is a mild analgesic and disinfectant. It is used externally in alcohol, ether-alcohol, and oil-based solutions to relieve itching, neuralgia, and migraine. Menthol ointments, inhalants, and nose drops are prescribed for inflammations of the upper respiratory tract (common cold, tracheitis). Menthol is prepared in emulsion form for internal use as a sedative in the treatment of certain gastrointestinal diseases. Ingakamf inhalers, Zelenin drops, and Validol are menthol-containing products. Menthol is also used in perfume and cosmetics (in dental-care products), in the food industry (liqueurs, candy), and in flavoring tobacco.

menthol

[′men‚thȯl]
(organic chemistry)
CH3C6H9(C3H7)OH An alcohol-soluble, white crystalline compound that may exist in levo form or a mixture of dextro and levo isomers; used in medicines and perfumes, and as a flavoring agent. Also known as peppermint camphor.

menthol

an optically active organic compound found in peppermint oil and used as an antiseptic, in inhalants, and as an analgesic. Formula: C10H20O
References in periodicals archive ?
1975) studied the effect of menthol on the colonic motility in dogs.
Asked whether this could lead to smoking traditional tobacco, Georgiou said he doubts it, but he could be tempted to try menthols because he has already tried flavoured smoking.
Menthol (30-55% of natural PO) and other plant mono-terpenes in PO are highly fat soluble and therefore rapidly absorbed from the proximal gut (Somerville et al.
When the menthols ban comes, in 2022, it won't be a bobby on the beat who clips your ear for lighting up but someone who looks like he's about to storm the Iranian embassy.
About 30 percent of adult smokers and more than 40 percent of youth smokers report smoking menthol cigarettes, according to FDA.
The research found that while there was no difference between menthol and non-menthol cigarettes in terms of developing smoking-related disease, the effect of menthol is more addictive and so poses a greater risk in terms of health.
Rob Burton, British American Tobacco's (BAT) international scientific affairs manager however argued that the issue of menthol from the point of view of regulators "is whether or not it's considered to be a characterising flavour and our position is strong that we do not use ingredients that attract underage minor into smoking and there is no evidence that use of menthol is attractive to children.
According to a study by the Harvard School of Public Health, more than 70% of African American smokers buy menthol cigarettes.
YOUNG people are being lured into smoking through the sale of cigarettes with adjusted menthol levels, researchers have claimed.
Menthol has been used to make some US cigarette brands more appealing to the young,Aa researchers claim.
Co-author Howard Koh, Professor and Associate Dean for Public Health Practice at the school, said: "For decades, the tobacco industry has carefully manipulated menthol content not only to lure youth but also to lock-in lifelong adult customers.